BioImages: The Virtual Field-Guide (UK)

Exopterygota (earwigs, grasshoppers, stoneflies, true bugs, and other insects with wings developing externally)

Subtaxa (ie subgroups of this Division (Zoo.))

DERMAPTERA (earwigs)
FORFICULIDAE (a family of earwigs), eg: Forficula auricularia forma forcipata (Common Earwig - Large Forcep Form) - Male - dorsal view SPONGIPHORIDAE (lesser earwigs), eg: Labia minor (Lesser Earwig) - Adult - dorsal view
Order 4 subtaxa 10 ident refs
DICTYOPTERA (cockroaches)
BLATTELLIDAE (a family of cockroaches), eg: Ectobius panzeri (Lesser Cockroach) - Male - dorsal view
Order 4 subtaxa 9 ident refs
AUCHENORRHYNCHA (a suborder of bugs), eg: Philaenus spumarius quadrimaculatus (a cuckoo-spit insect) - Adult - dorsal view HETEROPTERA (true bugs), eg: Miris striatus (Fine Streaked Bugkin) - Dorsal view - in situ STERNORRHYNCHA (a suborder of bugs), eg: Trioza centranthi (a jumping plantlouse) - Galled plant Unidentified Hemiptera (Unidentified Bugs), eg: Unidentified Hemiptera (Unidentified Bugs) - Homopteran bug with parasite - front three-quarter view
Order 228 subtaxa 221 ident refs
ORTHOPTERA (grasshoppers and crickets)
ACRIDOIDEA (a superfamily of orthopterans), eg: Omocestus rufipes (Woodland Grasshopper) - Male - dorsal view CONOCEPHALIDAE (cone-heads), eg: Conocephalus fuscus (Long-winged Cone-head) - Female - dorsal view GRYLLOIDEA (a superfamily of orthopterans), eg: Nemobius sylvestris (Wood Cricket) - Female - dorsal view GRYLLOTALPIDAE (mole-crickets), eg: Gryllotalpa gryllotalpa (Mole Cricket) - Latero-dorsal view MECONEMATIDAE (oak bush crickets), eg: Meconema thalassinum (Oak Bush-cricket) - Female - dorso-lateral view MOGOPLISTIDAE (scaly crickets), eg: Pseudomogoplistes vicentae (Scaly Cricket) - Female - dorsal view PHANEROPTERIDAE (speckled bush crickets), eg: Leptophyes punctatissima (Speckled Bush-cricket) - Female - dorso-lateral view TETRIGOIDEA (a superfamily of orthopterans), eg: Tetrix ceperoi (Cepero's Ground-hopper) - Nymph - dorsal view TETTIGONIOIDEA (a superfamily of orthopterans), eg: Tettigonia viridissima (Great Green Bush-cricket) - Male - dorsal view
Order 28 subtaxa 31 ident refs
PHTHIRAPTERA (sucking lice, louse)
ANOPLURA (lice), eg: Pediculus humanus humanus (Body Louse) - Juvenile louse in clothing
Order 3 subtaxa 7 ident refs
PLECOPTERA (stoneflies)
LEUCTRIDAE (needle flies), eg: Leuctra geniculata (Willow Fly) - Female - dorsal view - wings spread NEMOUROIDEA (a superfamily of stoneflies), eg: Unidentified Nemouridae (Unidentified Browns) - Dorsal view PERLIDAE (large stoneflies), eg: Perla bipunctata (Large Pale Stonefly) - Adult - dorsal view PERLODIDAE (a family of Stoneflies), eg: Isoperla grammatica (Common Yellow Sally) - Wings apart - dorsal view Unidentified Plecoptera (Unidentified Stoneflies), eg: Unidentified Plecoptera (Unidentified Stoneflies) - Adult - dorsal view
Order 7 subtaxa 5 ident refs
PSOCOPTERA (booklice and barklice or barkflies)
ECTOPSOCIDAE (a family of barkflies), eg: Ectopsocus petersi (a barkfly) - Dorsal view PSOCIDAE (a family of barklice), eg: Metylophorus nebulosus (a barklouse) - Dorsal view
Order 3 subtaxa 8 ident refs
THYSANOPTERA Haliday, 1836 (thrips)
AEOLOTHRIPIDAE (a family of thrips), eg: Aeolothrips tenuicornis (a thrips) - Female - dorsal view THRIPIDAE (a family of thrips), eg: Unidentified Thripidae (Unidentified Thripid Thrips) - Adult - dorsal view Unidentified Thysanoptera (Unidentified Thrips), eg: Unidentified Thysanoptera (Unidentified Thrips) - Adult - dorsal view
Order 4 subtaxa 3 ident refs

Suggested Literature

BioInfo BioInfo ( has 94 general literature references to Exopterygota (earwigs, grasshoppers, stoneflies, true bugs, and other insects with wings developing externally)

Exopterygota may also be covered by literature listed under:

(living things)
(insects and other 6-legged organisms)
(true insects)

BioInfo BioInfo ( has 3680 feeding and other relationships of Exopterygota (earwigs, grasshoppers, stoneflies, true bugs, and other insects with wings developing externally)

Further Information

Notes (MWS) These insects have wingless juvenile forms (eg nymphs) which often look fairly similar to the adults, albeit with wings reduced or absent. Development from the juvenile to the adult form (metamorphosis) proceeds by a series of stages (instars) which (in the winged species) have increasingly developed wings leading to the fully-winged adult.
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